O3: Anzahl der Tage mit max. 8-h-Wert über 120 µg/m³, Mittelwert 2021-22-23

|{{http://arcgis-portal.public.lu/server/rest/services/GR/air_quality_2023_legend/MapServer/1/images/5fab446dab1b0f0735200f4ec4ada917?.png?nolink}}|0-5 Tage|
|{{http://arcgis-portal.public.lu/server/rest/services/GR/air_quality_2023_legend/MapServer/1/images/3fe60fb885a2c6cb668c0bdb42a2b1e0?.png?nolink}}|6-10 Tage|
|{{http://arcgis-portal.public.lu/server/rest/services/GR/air_quality_2023_legend/MapServer/1/images/39d4afd92455e934e877509e8cb1d595?.png?nolink}}|11-18 Tage (18 Tage =Zielwert Richtlinie 2030)|
|{{http://arcgis-portal.public.lu/server/rest/services/GR/air_quality_2023_legend/MapServer/1/images/2195a6c392f0dfa7f2c78ecd65fe534e?.png?nolink}}|19-25 Tage (25 Tage = Zielwert aktuelle Richtlinie)|
|{{http://arcgis-portal.public.lu/server/rest/services/GR/air_quality_2023_legend/MapServer/1/images/bbd927619a9db2dde3410c6fa76b0142?.png?nolink}}|>25 Tage|

Klassifikation des Standorttyps
|{{http://arcgis-portal.public.lu/server/rest/services/GR/air_quality_2023_legend/MapServer/0/images/ed3a980edd60a8d7c045410b275a51b9?.png?nolink}}|ländlicher Hintergrund|
|{{http://arcgis-portal.public.lu/server/rest/services/GR/air_quality_2023_legend/MapServer/0/images/09fefd19ec7662f8db591e0169649917?.png?nolink}}|städtischer Hintergrund|
|{{http://arcgis-portal.public.lu/server/rest/services/GR/air_quality_2023_legend/MapServer/0/images/63239df97cb55a45ebf9d3d49f9f33be?.png?nolink}}|verkehrsnah|
|{{http://arcgis-portal.public.lu/server/rest/services/GR/air_quality_2023_legend/MapServer/0/images/7c71f775891df7659a2fb2566dd236e6?.png?nolink}}|industriell|